摘要:
A method is disclosed for making a liquid crystal composite including a dye. The method comprises forming volumes in which a liquid crystal material is surrounded by a containment medium, forming a dye dispersion, combining the dye dispersion and the volumes of liquid material, and treating that combination to facilitate the transfer of the dye into the volumes of liquid crystal material.
摘要:
Compounds of the structure ##STR1## where --R' is --F, --CF.sub.3, --CN, or --Cl; each --R", which may be the same or different, is independently selected from the group consisting of C.sub.1 -C.sub.6 alkyl or hydroxyalkyl moieties and aryl moieties; and n is 0 or 1. Such compounds are useful as derivatizing and crosslinking agents for polymers, especially fluorinated poly(arylene ethers).
摘要:
A composition having the structure ##STR1## wherein --R' is --F or --Cl, each --R", which may be the same or different, is independently selected from the group consisting of C.sub.1 -C.sub.6 alkyl or hydroxyalkyl moieties and aryl moieties, and n is 1 or 2. These compositions are useful as co-monomers or end-cappers for the introduction of thermally reactive cross-linking sites into polymers.
摘要:
Fluorinated polyether compositions having reactive end gorups, such as ##STR1## can be crosslinked to produce cured films useful as dielectrics for microelectronic applications. Other reactive end groups such as allyl, benzocyclobutyl, N-phenylmaleimido, alkynylphenyyl, styryl, allylphenyl, cyanophenyl, and triazenophenyl are also suitable.
摘要:
A crosslinkable composition comprising:(i) a fluorinated poly(arylene ether) comprising a repeat unit of such as ##STR1## and (ii) a bistriazene compound such as ##STR2## bistriazene compound (ii) being present in an amount effective to crosslink fluorinated poly(arylene ether) (i).
摘要:
In some embodiments, an analyte detection system is provided that includes a nanochannel, an electrode arrangement, and a plurality of nanoFET devices disposed in the nanochannel. A plurality of nucleic acid base detection components can be used that include a plurality of nanopores, a plurality of nanochannels, a plurality of hybridization probes, combinations thereof, and the like. According to other embodiments of the present teachings, different coded molecules are hybridized to a target DNA molecule and used to detect the presence of various sequences along the target molecule. A kit including mixtures of coded molecules is also provided. In some embodiments, devices including nanochannels, nanopores, and the like, are used for manipulating movement of DNA molecules, for example, in preparation for a DNA sequencing detection. Nanopore structures and methods of making the same are also provided as are methods of nucleic acid sequencing using the nanopore structures. Surface-modified nanopores are provided as are methods of making them. In some embodiments, surfaced-modified nanopores for slowing the translocation of single stranded DNA (ssDNA) through the nanopore are provided, as are nanopores configured to detect each of a plurality of different bases on an ssDNA strand.
摘要:
The invention provides compositions, methods and kits for high speed, high resolution of analytes by capillary electrophoresis starting with uncoated capillaries. The compositions comprise a sieving component, comprising a non-crosslinked acrylamide polymer, and a surface interaction component, comprising at least one uncharged and non-crosslinked water-soluble silica-adsorbing polymer. Methods for employing the novel compositions in capillary electrophoresis are provided. Kits comprising the novel compositions for use in the novel methods are also provided.
摘要:
System and methods for detecting analytes such as pathogenic cells are described. The methods allow for the direct measurement of analytes such as pathogenic organisms without the need for sample preparation and/or PCR. The devices can be used individually as point-of-use sensors for airborne pathogens and other pathogenic organisms in foods and agriculture products.
摘要:
Methods of modulating the binding interactions between a (biomolecular) probe or detection agent and an analyte of interest from a biological sample in a biosensor having a multisite array of test sites. In particular, the methods modulate the pH or ionic concentration gradient near the electrodes in such biosensor. The methods of modulating the binding interactions provide a biosensor and analytic methods for more accurately measuring an analyte of interest in a biological sample.
摘要:
The invention provides compositions, methods and kits for high speed, high resolution of analytes by capillary electrophoresis starting with uncoated capillaries. The compositions comprise a sieving component, comprising a non-crosslinked acrylamide polymer, and a surface interaction component, comprising at least one uncharged and non-crosslinked water-soluble silica-adsorbing polymer. Methods for employing the novel compositions in capillary electrophoresis are provided. Kits comprising the novel compositions for use in the novel methods are also provided.